Hoisting-machine



(No Model.) 2 Sheets-Sheet 1. W. R. THATGHER.

HOISTING MAGHINE.

No. 365.107. Patented June21, 1887.

(No Model.) 2 Sheets Sheet 2. W. R. THATGHER.

HOISTING MAOHINE.

Patented June 21 UNITED STATES PATENT DFFICE.

IVALTER RUDOLPH THATCHEI, OF OSKALOOSA, IO\VA.

HOISTING- MACHINE.

To all whom it may concern:

Be it known that I, W ALTER RUDOLPH THATOIIER, a citizen of the UnitedStates, residing at Oskaloosa, in the county of Mahaska and State ofIowa, have invented new and useful Improvements in Lifting and HoistingMachines, of which the following is a specification.

The invention relates to improvements in lifting and hoisting machines,the object being to provide a machine of strong, compact, and simpleconstruction, that will not need frequent repair, and will do its workcertainly and effectively; and it consists in the construction and novelarrangement of parts, hereinafter described, illustrated in thedrawings, and pointed out in the claims hereto appended.

In the accompanying drawings, Figure 1 is a perspective view of themachine. Fig. 2 is a central vertical section of the same, passinglongitudinally through the walking-beam. Fig. 3 is a detail sectionalview to show the means by which the walkingbeam is connected to the mainframe.

teferring to the drawings by letter, A designates a bed or base-blockhaving a strong vertical post, a, rising from it.

13 is the main frame of the machine, composed of the side plates, b b,secured together by a suitable transverse block near its lower end, andby the sock et'block b, which stands between said plates and has itsside edges provided with tenons, which pass through correspondingopenings in said plates, and are pinned, as shown, on the outsidethereof.

b" is a central socket or step formed in the block b for the upper endof the post a, upon which the main frame is turned.

0 is a walking-beam provided about centrally on its sides with thetrunnions c c,which turn in hearings in the upper end of the in clinedbeams d d, which, with the horizontal beams (2 (1, form a frame, D, withthe ends of the said beams d d secured to the inner sides of theplates 1) Z).

E is a beam standing vertically from the up per surface of thewalking-beam immediately above the trunnions c c, and stayed thereon byside bars, as shown. The end of the inner arm, a, of the walking-beamabove the windlass is deeply bifurcated, and has pivoted between itsarms the pulley F, near the ends ofthe arms,

Patent 310,365,107, dated June 21, 1887.

Serial No. 232,748. (No model.)

and the pulleyf, near theinner end ofthe bifurcation. ff areadjusting-holes in said arms to move the pulleyf farther in or out, asdesired. The end of the outer arm, 6, of the walking-beam is providedwith a depending double hook, 0 for the attachment, by ropes, chains, orotherwise, of the weight to be raised. The upper end of the shank ofsaid hook projccts through the beam and forms a point of attachment forthe actuating rope or chain, hereinafter described.

9 is a pulley journaled between the arms of the bifurcated end of thebeam E, and G is the Windlass-roller having its shaft journaled inbearings formed in the outer corners of the frame D, the said shafthaving one end extended outside of itsjonrnal, and squared for theattachment of a crank-handle, g.

is a ratchet-wheel secured upon the end of the roller of the Windlass,and prevented from turning in the wrong direction by the pawl g", whichis pivoted upon the correspond ing beam, d, of the frame D.

g" is a pulley journaled between the beams d at a suitable distanceabove the roller G.

H is a rope or chain secured at one end to the Windlass-roller, passingthence upward, outward, and over the pulley F, thence downward andinward and around the pulley g thence again upward and outward andaround the pullcyf, thence over the pulley g, to have its other endsecured to the shank ofthehook 6 To raise a weight, it is attached, asexplained, to the said hook and the windlass turned by its crankhandle.The rope then winds on the roller G, and the arm 6 of the walking-beamis gradually raised with the attached weight, the power being increasedby the Windlass, pulleys, and walking-beam in the well-understoodmanner. Vhen the weight is raised, the main frame is rotated on the posta until the weight is over the desired point of delivery. It is thenlowered and detached.

For lifting weights a great distance-such as buckets of water from awell or coal from a minea bifurcated block, 1?, having a pulley, I,journaled between its arms, is secured to the end of the arm 6 of thewalking-beam, which is blocked or wedged in a horizontal position on themain frame. The end of the rope or chain H is then detached from theshank of the hook 6", passed over the pulley I, and has ahook, dog, orother attaching device secured to its lower end. This device is loweredinto the well or mine and a bucket containing the material to be raisedattached to it. The mechanism is then operated as before; but in theother instance articles could only be raised to a height limited by theswing of the walking-beam.

I is a button, which is pivoted in a slot in one side plate of the mainframe, and which can be turned on its pivot and caused to bear againstone side of a squared projection, a, on the post a, so as to prevent themain frame from rotating thereon.

If desired, the machine may have its supporting-post planted directly inthe ground, and the small portable machine must have its base-blockbraced when placed in position.

To increase the power when, the device is used for well or minepurposes, the walkingbeam is reversed, so that only one pulley is overthe Windlass, a pulley is placed on the hail of the bucket, the rope orchain passed thereunder, and, ascending, has its end secured to the endof the Walking-beam. This lessens the draft.

Having described my invention, I claim- 1. In a lifting and hoistingmachine, the combination, with the base-block and the post risingvertically therefrom, of the main frame journaled upon the upper endofsaid post, so as to turn horizontally thereon, the walkingbeamjournaled about centrally on the main frame, the. beam rising verticallyfrom the walking-beam at a point vertically above its of thewalking-beam above the hook, substantially as specified.

2. The combination, with theinain frame and extension D, securedthereto, both rotating together on the top of the post a, of thewalking-beam O, turning on the trunnions c, the beam E, standingvertically from the Walking-beam above said trunnions, the pulleys Ff,journaled in the bifurcated end of the arm a of the walking-beam, thepulley I, journaled in a block, 6, secured to the end of the arm e ofthe walking-beam, the hook a attached to said end, the pulley g,journaled in the end of the beam E, the Windlass and pulley g,journale'd between the beams d of the frame D, the Windlass beingprovided with a crank-handle, ratchet-wheel,and pawl, and the rope H,running or rendering over the pulleys in the way substantially asspecified.

In testimony that I claim the foregoing as my own I have-hereto affixedmy signature in presence of two witnesses.

WALTER RUDOLPH THATCllER.

Witnesses:

B. F. HosTETTER, G. M. DIXON.

